Bug 395670

Summary: Discover crashes, if I click a screenshot of a Plasma Widget
Product: [Applications] Discover Reporter: Alex Ander <aalexandera>
Component: discoverAssignee: Aleix Pol <aleixpol>
Status: RESOLVED WORKSFORME    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version First Reported In: 5.11.0   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Alex Ander 2018-06-20 21:35:02 UTC 
Application: plasma-discover (5.11.0)

Qt Version: 5.11.0
Frameworks Version: 5.47.0
Operating System: Linux 4.16.3-041603-generic x86_64
Distribution: KDE neon User Edition 5.13

-- Information about the crash:
- What I was doing when the application crashed:

Open Discover
Go to Plasma Addons - Plasma Widgets
Open the first one: Event Calendar and then its screenshot. It happens, if you do it quickly.

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f90d80928c0 (LWP 9259))]

Thread 11 (Thread 0x7f909218f700 (LWP 9397)):
#0  0x00007f90ce223a79 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f90ce1de929 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f90ce1df2bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f90ce1df49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f90d40cdbeb in QEventDispatcherGlib::processEvents (this=0x7f9088003180, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f90d40751ca in QEventLoop::exec (this=this@entry=0x7f909218ecf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007f90d3eaa5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#7  0x00007f90d3eb5727 in QThreadPrivate::start (arg=0x7f90a8850f70) at thread/qthread_unix.cpp:367
#8  0x00007f90d00446ba in start_thread (arg=0x7f909218f700) at pthread_create.c:333
#9  0x00007f90d34af41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f90837ff700 (LWP 9294)):
#0  0x00007f90d34a374d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f90ce1df38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f90ce1df49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f90d40cdbeb in QEventDispatcherGlib::processEvents (this=0x7f90780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f90d40751ca in QEventLoop::exec (this=this@entry=0x7f90837fecf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f90d3eaa5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#6  0x00007f90d3eb5727 in QThreadPrivate::start (arg=0x70a99d0) at thread/qthread_unix.cpp:367
#7  0x00007f90d00446ba in start_thread (arg=0x7f90837ff700) at pthread_create.c:333
#8  0x00007f90d34af41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f9091579700 (LWP 9271)):
#0  0x00007f90d34a374d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f90ce1df38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f90ce1df49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f90d40cdbeb in QEventDispatcherGlib::processEvents (this=0x7f907c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f90d40751ca in QEventLoop::exec (this=this@entry=0x7f9091578cf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f90d3eaa5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#6  0x00007f90d3eb5727 in QThreadPrivate::start (arg=0x5042c20) at thread/qthread_unix.cpp:367
#7  0x00007f90d00446ba in start_thread (arg=0x7f9091579700) at pthread_create.c:333
#8  0x00007f90d34af41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f9093bbb700 (LWP 9268)):
#0  0x00007f90ce223a94 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f90ce1dedb9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f90ce1df330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f90ce1df49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f90d40cdbeb in QEventDispatcherGlib::processEvents (this=0x7f908c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f90d40751ca in QEventLoop::exec (this=this@entry=0x7f9093bbacf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007f90d3eaa5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#7  0x00007f90d3eb5727 in QThreadPrivate::start (arg=0x28f14f0) at thread/qthread_unix.cpp:367
#8  0x00007f90d00446ba in start_thread (arg=0x7f9093bbb700) at pthread_create.c:333
#9  0x00007f90d34af41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f90a118f700 (LWP 9267)):
#0  0x00007f90d34a374d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f90ce1df38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f90ce1df49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f90d40cdbeb in QEventDispatcherGlib::processEvents (this=0x7f90980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f90d40751ca in QEventLoop::exec (this=this@entry=0x7f90a118ecf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f90d3eaa5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#6  0x00007f90d3eb5727 in QThreadPrivate::start (arg=0x281ce30) at thread/qthread_unix.cpp:367
#7  0x00007f90d00446ba in start_thread (arg=0x7f90a118f700) at pthread_create.c:333
#8  0x00007f90d34af41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f90a224e700 (LWP 9265)):
#0  0x00007f90d349f27d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f90ce2226f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f90ce1dee74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f90ce1df330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f90ce1df712 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f90a3c269d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f90ce205bb5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f90d00446ba in start_thread (arg=0x7f90a224e700) at pthread_create.c:333
#8  0x00007f90d34af41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f90a2a4f700 (LWP 9264)):
#0  0x00007f90d34a374d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f90ce1df38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f90ce1df49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f90ce1df4d9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f90ce205bb5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f90d00446ba in start_thread (arg=0x7f90a2a4f700) at pthread_create.c:333
#6  0x00007f90d34af41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f90b0a83700 (LWP 9263)):
#0  0x00007f90ce1dc3c7 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f90ce1de8bb in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f90ce1df2bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f90ce1df49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f90d40cdbeb in QEventDispatcherGlib::processEvents (this=0x7f90a80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f90d40751ca in QEventLoop::exec (this=this@entry=0x7f90b0a82c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007f90d3eaa5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#7  0x00007f90d73b7e66 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f90d3eb5727 in QThreadPrivate::start (arg=0x27bf3d0) at thread/qthread_unix.cpp:367
#9  0x00007f90d00446ba in start_thread (arg=0x7f90b0a83700) at pthread_create.c:333
#10 0x00007f90d34af41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f90bacc4700 (LWP 9262)):
#0  0x00007f90d34a374d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f90ce1df38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f90ce1df49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f90d40cdbeb in QEventDispatcherGlib::processEvents (this=0x7f90ac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f90d40751ca in QEventLoop::exec (this=this@entry=0x7f90bacc3cd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f90d3eaa5e4 in QThread::exec (this=this@entry=0x233c460) at thread/qthread.cpp:522
#6  0x00007f90d4a32cf5 in QQmlThreadPrivate::run (this=0x233c460) at qml/ftw/qqmlthread.cpp:148
#7  0x00007f90d3eb5727 in QThreadPrivate::start (arg=0x233c460) at thread/qthread_unix.cpp:367
#8  0x00007f90d00446ba in start_thread (arg=0x7f90bacc4700) at pthread_create.c:333
#9  0x00007f90d34af41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f90bbed5700 (LWP 9261)):
#0  0x00007f90d349f27d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f90ce2226f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f90ce1dee74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f90ce1df330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f90ce1df49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f90d40cdbeb in QEventDispatcherGlib::processEvents (this=0x7f90b40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f90d40751ca in QEventLoop::exec (this=this@entry=0x7f90bbed4cc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#7  0x00007f90d3eaa5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:522
#8  0x00007f90d6298f35 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f90d3eb5727 in QThreadPrivate::start (arg=0x7f90d6511d60) at thread/qthread_unix.cpp:367
#10 0x00007f90d00446ba in start_thread (arg=0x7f90bbed5700) at pthread_create.c:333
#11 0x00007f90d34af41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f90d80928c0 (LWP 9259)):
[KCrash Handler]
#6  0x00007f90d3df9438 in vtable for __cxxabiv1::__si_class_type_info () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#7  0x00007f90a184477c in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/kns-backend.so
#8  0x00007f90d4a7a1c2 in QQmlAdaptorModel::fetchMore (this=0xef9b708) at ../../include/QtQml/5.11.0/QtQml/private/../../../../../src/qml/util/qqmladaptormodel_p.h:144
#9  QQmlDelegateModel::_q_modelReset (this=0xef9b650) at types/qqmldelegatemodel.cpp:1531
#10 0x00007f90d4a7a5c5 in QQmlDelegateModel::qt_static_metacall (_o=_o@entry=0xef9b650, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=7, _a=_a@entry=0x7fffbb9ea260) at .moc/moc_qqmldelegatemodel_p.cpp:197
#11 0x00007f90d4a7a9b8 in QQmlDelegateModel::qt_metacall (this=0xef9b650, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0x7fffbb9ea260) at .moc/moc_qqmldelegatemodel_p.cpp:330
#12 0x00007f90d40a3cf4 in QMetaObject::activate (sender=sender@entry=0xf03a570, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=18, argv=argv@entry=0x7fffbb9ea260) at kernel/qobject.cpp:3786
#13 0x00007f90d40a4497 in QMetaObject::activate (sender=sender@entry=0xf03a570, m=m@entry=0x7f90d44f65a0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=18, argv=argv@entry=0x7fffbb9ea260) at kernel/qobject.cpp:3633
#14 0x00007f90d402476a in QAbstractItemModel::modelReset (this=this@entry=0xf03a570, _t1=...) at .moc/moc_qabstractitemmodel.cpp:643
#15 0x00007f90d40264ec in QAbstractItemModel::endResetModel (this=0xf03a570) at itemmodels/qabstractitemmodel.cpp:3257
#16 0x00007f90d703a536 in ReviewsModel::setResource(AbstractResource*) () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#17 0x00007f90d7063e13 in ?? () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#18 0x00007f90d4a1b6a6 in QQmlPropertyData::writeProperty (flags=..., value=<optimized out>, target=<optimized out>, this=<optimized out>) at ../../include/QtQml/5.11.0/QtQml/private/../../../../../src/qml/qml/qqmlpropertycache_p.h:346
#19 QObjectPointerBinding::write (this=0xf03a730, result=..., isUndefined=<optimized out>, flags=...) at qml/qqmlbinding.cpp:694
#20 0x00007f90d4a1d1e9 in QQmlNonbindingBinding::doUpdate (this=0xf03a730, watcher=..., flags=..., scope=...) at qml/qqmlbinding.cpp:249
#21 0x00007f90d4a19b83 in QQmlBinding::update (this=0xf03a730, flags=..., flags@entry=...) at qml/qqmlbinding.cpp:185
#22 0x00007f90d4a19e8e in QQmlBinding::refresh (this=<optimized out>) at qml/qqmlbinding.cpp:532
#23 0x00007f90d49ed5d7 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:106
#24 0x00007f90d4988404 in QQmlData::signalEmitted (object=0xee1ce40, index=76, a=0x0) at qml/qqmlengine.cpp:861
#25 0x00007f90d40a41f2 in QMetaObject::activate (sender=0xee1ce40, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3649
#26 0x00007f90d498979c in QQmlData::destroyed (this=0x904f8c0, object=0x7e02580) at qml/qqmlengine.cpp:1857
#27 0x00007f90d40ab8c1 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:913
#28 0x00007f90a18432b9 in KNSResource::~KNSResource() () from /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/kns-backend.so
#29 0x00007f90d40a4c00 in QObject::event (this=0x7e02580, e=<optimized out>) at kernel/qobject.cpp:1242
#30 0x00007f90d56cc29c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x7e02580, e=0xfe8f260) at kernel/qapplication.cpp:3713
#31 0x00007f90d56d3917 in QApplication::notify (this=0x7fffbb9ec780, receiver=0x7e02580, e=0xfe8f260) at kernel/qapplication.cpp:3472
#32 0x00007f90d4076e38 in QCoreApplication::notifyInternal2 (receiver=0x7e02580, event=event@entry=0xfe8f260) at kernel/qcoreapplication.cpp:1048
#33 0x00007f90d4079a3e in QCoreApplication::sendEvent (event=0xfe8f260, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#34 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x2289180) at kernel/qcoreapplication.cpp:1745
#35 0x00007f90d4079eb8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1599
#36 0x00007f90d40ce5c3 in postEventSourceDispatch (s=0x22e99e0) at kernel/qeventdispatcher_glib.cpp:276
#37 0x00007f90ce1df197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f90ce1df3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007f90ce1df49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007f90d40cdbcf in QEventDispatcherGlib::processEvents (this=this@entry=0x22ed140, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#41 0x00007f90c77eac11 in QPAEventDispatcherGlib::processEvents (this=0x22ed140, flags=...) at qeventdispatcher_glib.cpp:69
#42 0x00007f90d40751ca in QEventLoop::exec (this=this@entry=0x7fffbb9ec6a0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#43 0x00007f90d407e2d4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1336
#44 0x0000000000411b9e in ?? ()
#45 0x00007f90d33c8830 in __libc_start_main (main=0x411180, argc=1, argv=0x7fffbb9ec948, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffbb9ec938) at ../csu/libc-start.c:291
#46 0x0000000000411cb9 in _start ()

Reported using DrKonqi
Comment 1 Alex Ander 2018-06-20 22:43:27 UTC 
I'm sorry, my Discover package was outdated, because of some version conflicts. I solved them, now its behavior is ok. How can I delete this report?
Comment 2 Christoph Feck 2018-06-20 23:33:32 UTC 
Thanks for the update; let's close this.